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Acta Physico-Chimica Sinica  1999, Vol. 15 Issue (03): 265-268    DOI: 10.3866/PKU.WHXB19990313
Determinstion of Standard Transfer Entropies of RbCl from H2O to Mixtures of H2O-DMF
Li Lin-Wei, Chu De-Ying, Liu Rui-Lin
College of Chemistry and Molecular Engineering,Peking University,Beijing 100871|Department of Chemistry,Liaocheng Teachers College,Liaocheng City 252059
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The standard electromotive forces of the reversible cells consisted of the Corning monovalent general cation selective electrode (M + ISE) and chloride selective electrode (Cl ISE), namely
Cl --ISE|RbCl( m ),H 2O(1- x ),DMF( x )|M +-ISE
have been measured, and the standard free energies of transfer(ΔStΘ) of RbCl from H2O to mixtures of H2O DMF have been calculated, the standard transfer entropies(ΔStΘ) have been also calculated from temperature coefficients ofΔStΘof RbCl at seven temperatures from 283.15 K to 318.15 K. The behavior of change ofΔStΘof RbCl with experimental temperature and mole fraction ( x ) of DMF in the mixed solvents and its influence on the structure of the mixed solvents were discussed on the basis of solvation theory ofelectrolyte solution.

Key wordsRbCl      Standard transfer entropies      Ionic solvation      Structure of solvent     
Received: 19 January 1998      Published: 15 March 1999
Corresponding Authors: Chu De-Ying   
Cite this article:

Li Lin-Wei, Chu De-Ying, Liu Rui-Lin. Determinstion of Standard Transfer Entropies of RbCl from H2O to Mixtures of H2O-DMF. Acta Physico-Chimica Sinica, 1999, 15(03): 265-268.

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